Machine



2 Sheets-Sheet 1..

S. CR U MP. BRONZIN G MACHINE.

N6. 106,667. Patented Aug. 1670.y

Tus Nonms PETEns co, Pnorau'mo.. wAsmNnron. u. c.

2 Sheets-Sheet 2. l S. GRUMP.

BRONZING MACHINE. Y No. 106,667. Patented Aug. 23. '1870;

ilnitrd SAMUEL (gisten cantar, or

BROOKLYN. NEW Yoan.

Letters Patent No. 106,667, dated August 23, 1870.

Hwa-

BRoNzING-MACHINE.

The Schedule referred toin these Letters Patent and making part of the same.

To4 all whom. tt may concern:

Be it known that I, in the county of Kings and State of New York, have invented an improved Bronzing-liachine, of which the following is a spcciiication.

Nature and Objeetsofthe I ncent'ton'.

My improvements relate to a machine for applying powdered bronze or other analogous material to fresh: ly printed or otherwise properly prepared surfaces of papel', and thc invention consists,

.Fh-st, in the conibini'tion with a equivalent device, for generating and directing a current of air upon the. surface of the prepared sheets, and means for combining or cominingling the powdered j material with such air-current, of an air-chamber for the deposit of the superfiuous material, ,and mechanism for tceding thc sheets through said air-chamber, thereby greatly ii'nproring the quality and uniformity of the work'done.-

econd, in thejcombination with such mechanism vcurrent of air, coininingling the powdered material therewith, and directing and depositing the fo'r generating the same upon thefj'prepared surface, of au air-exhausting mechanism arranged'either to deposit the. superfluous material either in an enlarged chaluher or screel'ling-bag, or to return it into the depositing current, thereby teral and preventing atmosphere to poison lfhird, in means for ty of the depositing that the latter will exceed the former, and compensate for any leakage at the apertures through which the sheets'are fed to the action ofthe depositing current.

Description of Draz'cing. v

In the accompanying drawing, forming a part of this specification,

Figure'l -is amsectional elevation .of myimproved bronzing-machine Figure il is a plan of the same; l

Figure III Vis a sectional elevation .of a' modified form thereof; andY Figure iV is a sectional elevationV of a second modification thereof.

General Description of and II.

' A is the feeding-cylinder by which the sheets of pa per are `carried through the air-chamber and subjected to the action ot' the depositin f air-currentQ 1t has a rotary motion imparted to it by any conavoiding loss or waste of the maits escape into the surrounding the vlungs of the workmen.,

regulating the relative intensivenient means, and is provided with a set of gripers,

a', to grasp and carry forward the sheets` as they are fedfrom` the feed-table A.

SAMUEL GnUMP, of Brooklyn,.

centrifugal fan, or'

and exhausting air-currents, so f ,'lhe. mechanism for feeding -ls'heets7 and theoperation of the as is common in the ordinary B B are the side frames of the principal workingparts.` 0

The space between the side frames in front of the cylinder is inclosed by the front, top, and bottom plates or boards blt2 b3, reaching back upon the cylinder and fitting to it as closely as possible, andyet allow the passage of the sheets ofpaper between their edges and the cylinder, andthe ends of the cylinder are made to lit closely to the side frames.\ v

, The air-chamber C is thus formed, the cylinder constituting one of its sides, so that 'the sheets, as they are carried around with thecylinder, are made t0 pass through the air-chamber.

v2D is the centrifugal fan for generating the deposit. ing air-current.

It is supported upon the bracket extensions Dl of the sidev frames, or in any other convenientmanner.b

IThe blast-nozzle D2 ot' this fan enters the chamber 0,'and terminatesa-short distance from the cylinder with a laterally expanded mouth, so as to cause the escaping current to impinge upon' the surface of the cylinder throughout its whole length.

D3 is an exhaust-pipeleading from the'bottom of the chamber C to the eye of the fan D, so that the fan exhausts from the chamber at the same time that it discharges Yinto it,"thus establishing a circulating current impinging upon the cylinder.

E is a hopper or funnel attached to the suction-pipe, and through which the hronge powder, or other materiah'is introduced into the air-current and made to circulate with it.

. The action of. the air-current will continually throw the powdered bronze against the surface of the cylin` der within the air-chamber, so that, as the cylinder revolves and carries the printed sheets through the chamber, the bronze will be directed against the suri face thereof, and will be made to adhere to the freshiy printed portions thereof, while the superliuous powder will be deected back into the chamber and carried back by the exhaust-current through the fan, to be again lthrown upon the paper.

It is evident that the. introduction of the powder at the. hopper E may be continuous, or that it may be introduced in quantities at proper intervals.

F is a rotating brush or polishing-wheel, located within the chamber C, and applyinga gentle friction to the sheets after they pass the depositing-nozzle, so as to remove the superlinous powder and burnish or polish that which has adhered to the printed surfaces. 1 YGr is a cloth bag-screen attached to, a branch pipe,

andV discharging .the gripers, is the same cylinder printing-press, the machine, support-ing A dy, A3, is also provided for dischargingthe sheets.I

the top and bottom' boards the screen-bag I, the excess of air tinding easyescapc g', of the blast-nozzle D, its purpose being .to lessen l the intensity of the blast as compared with the snc tion'. so that the latter will be more than sufficient to carry oil' the air introduced into the air-chamber by the former, and thus prevent any outward leaking of the air through the joints of the top and bottom plates i l 1,2 3 with the cylinder, or between the ends of the c vlinder and side frames; but, on the other hand, t'o cause a slight inward leak sufiicient to prevent any escape of the bronzing material. from themachine.- `Such of the material-as is blown into the bag will accumulate until its gravity causes it to drop back inl to the main ail-current. r

The size of the bag will obviously have to be regulated according to the strength ot' the blast and the amount of leakage. l

TheV exhaust connection I)3 maybe dispensed with by connecting a cloth bag-screen similar to G directly with the. chamber "C, so that all the air introduced therein may escape through the meshes of' such screen, f while'thc superfluous powder will be deposited therein, and may be taken therefrom for further use. With this arrangement a continuous and regular feeding in of the material at.thc eye of the If'an will be required.

The moditied form of my invention shown in Fig. i III. differs from that shown-in Figs. I and II, mainly in the use of' separate suction and blast-tails.

The suction-fan H removes the air and superuons powder from thechamber C, and deposits the latter in through the meshes thereof.

The blast-fan throws the material upon thecylinder and paper, as before described, but takes up in addition to its regular supply by hopper E, the deposit in the vbag 1, hy the extension of its suction-pipe Ptherein, as represented.

lhe capacity of the suction-tan being madeby construction the greatest, the salire resultthatis obtained by the application of' the screen-bag, as shown in Fig. l, will evidently be obtained in this instance. l

' The modified form ot' my invention, shown in Fig. IV, differs, mainly, from those above described inthe use of an induced current'to eiiect the depositing of the powdered material upon the papel'.` In this figure,`

J is the air-chamber, madeto cover a segment of' the cylinder and titclosely thereto-by hinged ilaps,j, faced with wool or like materialnl K is the fan, connecting with this Achamber by a pipe, K, opening into the eye ot' the fan, the dischargenozzle ot' the fan communicating by a pipe, K2, with a large screen-bag, K3.:

L is an induction aperture, controlled by aap# valve'or defiecting board, Z', and' connecting with the screen-bagK. l r

The material being fed'in at the hopper M, and the fan heilig set in motion, a current of air will enter the induction-aperture along with the' bronze -l powder, and, this air-current being made to impinge sharply by the action of the delecting board upon the `surface of the sheet as it is carried along by the movement of the cylinder, will cause the powder to deposit upon the printed surfaces, while the snperliuous powder will be carried along by the air-current through the fan and deposited in the screen-bag, to again enter the induction-aperture as required.

My invention possesses great advantages Yover` other means for like purposes, in Ithatit prevents the escape of the material from the machine into lthe surrounding atmospher'e to poison the lungs and destroy thev health ofthe attendant workman, and, also, in that it improves thc quality and uniformity of the work done,

It is, also, evidently applicable to various analogous uses, such as applyingtlock, glass,.and Paris green, and making sand-paper, paper` hangings, &c.

Having thus described my invent-ion.

'What I claim, and desire to secure by Letters" l. The combination ot' the fan I), and nozzle D, t'or producing an impinging current ot' commingled lair and powdered material, with" the air-chamber C, and sheet-feeding mechanism, or their equivalents, arranged and operating substantially as hereinbefore sett'orth. y

2. The combination of mechanism for producing an impinging current of comm-ngled air and powdered material, with an exhausting mechanism for carrying otf the air and superiluous material, substantially as and for the purpose hereinbet'ore set forth.

3. The screen-bag G, in' combination with a fan or fans arranged and operating to produce iuipinging and exhausting currents, substantially 'as and for the purpose hereinbetbre set forth.

SAML. CRUMP.

Witnesses I L. GosLING, W. H. Fonnsn.- 

